Resilient tire



O. H. WILLIAMS June 24 1924.

RESILIENT TIRE Filed Feb.. ll, 1924 'ORR H.WILLIAMS Patented Junge, 1924.

UNITED STATES PATENT oFFlcl-z.

ORB H. AWILLIAMS, OF COLUMBUS, OHIO, ASSIGNOR TO THE LANCASTER TIRE A ND RUBBER COMPANY, OF COLUMBUS, OHIO, A CORPORATION F OHIO.

, I a RESILIENT TIRE.

Application led February 11, 1924. Serial No.` 691,947.

To all whom t may concern." f

Be it known that 1,0m: H. WILLIAMS, a citizen of the United States, residing at Columbus, in the. county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Resilient Tires,

of which the following is a specification.

The object of this invention is to provide an improved automobile tire casing of the so called non-skid type with a construction of tread adapted not only to present numerous edges adapted to effectively prevent lateral skidding but also to utilize to some extent the principal of a vacuum with air pressure tending to make the tire grip the road.

The invention is embodied in the example herein shown and described, the feature or features of novelty bein finally claimed.

In the accompanying ravvings-f v Fi 1 is a plan view of a fraction of the trea construction.

Fig. 2 is a section on theline II-II Fig. 1. j

In lthe views 5 designates the body of the casing, the treadv being formed with a central circumambient rib 6 iianked on each side by stout slanting U-shaped protrusions 7 shown as set parallel to each other and at an inclination of about forty-five' degrees to the central rib 6. The ends of the legs of these rotrusions 7 are beveled ortapered oli', as s own at 7*,tl'1e body of the casing thereby affording a lbracingetl'ect to `said ends. Connecting the base or the inner end of each of the U-shaped protrusions 7 is a pair of slender Walls 8, said Walls being spaced from each other and 'inclined at about a; right angle to the direction of the legs of they U-protrusion. The walls 8, in connection with the middle rib 6 and base of the U-protruscion, form a pocket 9. When .the tread of the `casing at the region' of con- -tact L7with the road is. attened by the load of the car the lateral ULprotrusions are,

caused toapproach the circumarnbient rib thereby ilexing the Walls 8 which are made slender to permit this, thereby contracting said pockets and forcing. out the contained air. Upon the tendency of these pockets tp expand as the loadis gradually lessened by the roll of the tire a vacuum is created tendi f iig to press tbefvvalls against the road. Because the legs of the U-shaped protrusion are also inclined to a line transversely of the tire such legs tend to resist lateral skidding of the tire.

The forms of the parts can be changed somewhat Without departing from the gist of the invention as claimed.

l. A vtire tread including, in combination, I

to the same, and a pa'ir of inclined slender 7 0 Walls connecting the base ofeach of the U- shaped protrusions with said central'rib. 3. A tire tread including, in .combinatlom a central circumambient rib, a series of stout U-shaped protrusions flankin and inclined to said rib and a pair of sle der Walls'opposinglyinclined to. each of said p'rotrusions and connecting them'and the rib. n 4. A tire tread including, in combinatlon, a central circumambient rib, and a series of stout U-shaped'protrusi'ons inclined to' and flanking the rib; 5. A tire tread including, in combination, al central circumambient.rib,and a serieso stout U-shaped protrusicns spaced from, mclined to and an'king the rib.

oRR` H. WTLLIAMS. 

